Active Geophysical Monitoring

CHAPTER 19

FOUNDATIONS OF THE METHOD OF EM FIELD SEPARATION INTO UPGOING AND DOWNGOING PARTS AND ITS APPLICATION TO MCSEM DATA

Michael S. Zhdanov^a and Shuming Wang^a

Contents

1. Introduction

2. Integral Transforms of Electromagnetic Fields Using Stratton-Chu Type Integrals

2.1. Basic equations of upgoing and downgoing fields

2.2. Application of the Stratton-Chu type integrals for field separation

3. Spatial Fourier Transform Method of EM Field Separation into Upgoing and Downgoing Parts

3.1. Electromagnetic field in the (k, ω) domain

3.2. Separation of the observed EM field into upgoing and downgoing components

3.3. Convolution form of decomposition operators

4. Electromagnetic Field Separation into Upgoing and Downgoing Parts Using Horizontal ...